Abstract: Based on the fingertips of thinking image tracking algorithm is proposed.In constraint conditions,the bayesian statistical simplifying constraint problems,according to the principle of the bayesian filter,with the image characteristics of based on bayes'rule to calculate the posterior probability,to normalized processing of image characteristics,and through the establishment of color skin probability information of statistical model,simplify the tracking process.Experimental results show that the improved algorithm to image tracking at your fingertip,can improve the detection accuracy and robustness.